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中亚热带人工针叶林对未来气候变化的响应
引用本文:米娜,于贵瑞,温学发,孙晓敏,王树森.中亚热带人工针叶林对未来气候变化的响应[J].应用生态学报,2008,19(9):1877-1883.
作者姓名:米娜  于贵瑞  温学发  孙晓敏  王树森
作者单位:1. 中国气象局沈阳大气环境研究所,沈阳,110016;中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室,北京,100101
2. 中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室,北京,100101
3. Canada Centre for Remote Sensing, Natural Resources Canada, 588 Booth Street, Ottawa, Ontario K1A 0Y7, Canada
基金项目:国家自然科学基金,国家自然科学基金,国家重点基础研究发展计划(973计划),中国气象局沈阳大气环境研究所博士启动基金
摘    要:利用基于生理生态学过程的EALCO模型,探讨了千烟洲中亚热带人工针叶林生态系统对未来气候变化的响应.结果表明:CO2浓度、温度和降水的变化对该人工林生态系统碳水通量影响的程度不同,其中CO2浓度>温度>降水.CO2浓度是生态系统总光合生产力(GPP)的主要驱动因子,温度与CO2浓度均是控制生态系统呼吸的主要环境因子,温度的升高使植物地上部分呼吸明显增加,而CO2浓度升高则对土壤呼吸影响较大.温度升高使蒸散(ET)增加,而CO2浓度升高则使ET减少.在未来气候变化情景(2100年)下,该人工林生态系统的净初级生产力将增加22%,说明其仍具有较强的固碳潜力.

关 键 词:亚热带人工针叶林  生态系统模型  气候变化  碳水通量
收稿时间:2007-11-20

Responses of subtropical conifer plantation to future climate change: A simulation study.
MI Na,YU Gui-rui,WEN Xue-fa,SUN Xiao-min,WANG Shu-sen.Responses of subtropical conifer plantation to future climate change: A simulation study.[J].Chinese Journal of Applied Ecology,2008,19(9):1877-1883.
Authors:MI Na  YU Gui-rui  WEN Xue-fa  SUN Xiao-min  WANG Shu-sen
Affiliation:Shenyang Institute of Atmospheric Environment, China Meteorological Ad
ministration, Shengyang 110016, China; Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Canada Centre for Remote Sensing, Natural Resources Canada, 588 Booth Street, Ottawa, Ontario K1A 0Y7, Canada
Abstract:The responses of subtropical conifer plantation to climate change scenarios were investigated in Qianyanzhou by the process based physiological-ecological model EALCO (ecological assimilation of land and climate observation). The results showed that CO2 concentration had the greatest effects on the carbon and water fluxes of the plantation, followed by temperature, and precipitation. CO2 concentration was the main driving factor for the gross photosynthesis productivity of this plantation ecosystem, and temperature and CO2 concentration were the key environmental factors controlling the ecosystem respiration. Increasing temperature accelerated the respiration of aboveground part dramatically, while increasing CO2 concentration had greater effects on soil respiration. The evapotranspiration was enhanced by increasing temperature, but reduced by increasing CO2 concentration. Under the future climate changing scenario (the year 2100), the net primary productivity of this plantation ecosystem would be increased by 22%, suggesting that this ecosystem is still capable of sequestrating carbon.
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